 
#container {
    height: 300px;
    overflow: hidden;
    position: fixed;
    
    border-radius: 2px;
    left: 50%;
    top: 50%;
    margin: -150px 0 0 -270px;
    width: 1200px;
    border: 1px solid red;
}
#container .slide {
  width: 300px;
  height: 100%;
  transition: all .4s ease;
  cursor: pointer;
}
#container .slide.slide1 {
	background-color: #92DCE5;
	background-image: url(../../assets/pc/core3.png);
}
#container .slide.slide2 {
  background-color: #EF6F6C;
	background-image: url(../../assets/pc/core1.png);
}
#container .slide.slide3 {
  background-color: #FF386D;
	background-image: url(../../assets/pc/core2.png);
}
 
#container .slide span {
  color: white;
  opacity: -1;
  text-align: center;
  display: block;
  position: absolute;
  width: 40px;
  height: 40px;
  line-height: 44px;
  border-radius: 50%;
  top: 50%;
  margin-top: -20px;
  font-size: 40px;
  transition: all .4s ease;opacity: .5;
}
